20971312

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21487}}^1$

素因数の和:21556

約数の個数: 20

約数和(自身を含む): 41299936

約数和(自身を除く): 20328624

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21487, 42974, 85948, 171896, 343792, 1310707, 2621414, 5242828, 10485656, 20971312]

約数ペア:

[(1, 20971312), (2, 10485656), (4, 5242828), (8, 2621414), (16, 1310707), (61, 343792), (122, 171896), (244, 85948), (488, 42974), (976, 21487)]